/* ============================================================
   TRIDENT LOGIC SYSTEMS — Main Stylesheet
   ============================================================ */

:root {
  --black: #080A0E;
  --black-2: #0D1018;
  --black-3: #141820;
  --black-4: #1C2230;
  --blue: #00BFFF;
  --blue-dim: #0077BB;
  --blue-dark: #003D6B;
  --white: #F0F4FF;
  --white-dim: #8B9BB8;
  --white-dimmer: #3D4F6A;
  --accent: #00BFFF;
  --success: #00E5A0;
  --error: #FF4455;

  --font-display: 'Bebas Neue', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --font-ui: 'Syne', sans-serif;

  --nav-h: 72px;
  --max-w: 1200px;
  --radius: 8px;
  --radius-lg: 16px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  background: var(--black);
  color: var(--white);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.6;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ---- UTILITIES ---- */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-ui); font-weight: 600; font-size: 0.875rem;
  letter-spacing: 0.04em; cursor: pointer; border: none;
  border-radius: var(--radius); padding: 13px 24px;
  transition: all 0.25s ease; text-transform: uppercase;
}
.btn-primary {
  background: var(--blue); color: var(--black);
}
.btn-primary:hover {
  background: #fff; transform: translateY(-1px);
  box-shadow: 0 8px 32px rgba(0,191,255,0.35);
}
.btn-ghost {
  background: transparent; color: var(--white);
  border: 1px solid var(--white-dimmer);
}
.btn-ghost:hover {
  border-color: var(--blue); color: var(--blue);
  box-shadow: 0 0 20px rgba(0,191,255,0.15);
}
.btn-full { width: 100%; justify-content: center; }
.btn-nav {
  background: var(--blue); color: var(--black);
  padding: 10px 20px; font-size: 0.8rem;
}
.btn-nav:hover { background: #fff; }

.section-tag {
  font-family: var(--font-ui); font-size: 0.7rem; font-weight: 700;
  letter-spacing: 0.18em; color: var(--blue); text-transform: uppercase;
  margin-bottom: 16px;
}
.section-header { text-align: center; max-width: 620px; margin: 0 auto 72px; }
.section-header h2 {
  font-family: var(--font-display); font-size: clamp(2.4rem, 5vw, 3.8rem);
  line-height: 1.05; letter-spacing: 0.02em; margin-bottom: 20px;
}
.section-header p { color: var(--white-dim); font-size: 1.05rem; }

/* ---- REVEAL ANIMATIONS ---- */
.reveal {
  opacity: 0; transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: var(--nav-h);
  transition: background 0.3s, box-shadow 0.3s;
}
.nav.scrolled {
  background: rgba(8,10,14,0.92);
  backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 rgba(0,191,255,0.08);
}
.nav-inner {
  max-width: var(--max-w); margin: 0 auto; padding: 0 24px;
  height: 100%; display: flex; align-items: center; gap: 32px;
}
.logo {
  display: flex; align-items: center; gap: 10px;
  flex-shrink: 0;
}
.logo-icon { width: 28px; height: 34px; }
.logo-text {
  font-family: var(--font-display); font-size: 1.25rem; letter-spacing: 0.08em;
  color: var(--white);
}
.logo-text span { color: var(--blue); }
.nav-links {
  display: flex; gap: 32px; margin-left: auto;
}
.nav-links a {
  font-family: var(--font-ui); font-size: 0.8rem; font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--white-dim);
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--blue); }
.hamburger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 4px; margin-left: auto;
}
.hamburger span {
  display: block; width: 22px; height: 2px; background: var(--white);
  transition: all 0.3s;
}
.mobile-menu {
  display: none; flex-direction: column; gap: 0;
  background: var(--black-2); border-top: 1px solid var(--black-4);
  padding: 16px 24px 24px;
}
.mobile-menu a {
  font-family: var(--font-ui); font-size: 1rem; font-weight: 600;
  padding: 14px 0; border-bottom: 1px solid var(--black-4);
  color: var(--white-dim);
}
.mobile-menu a:last-child { border-bottom: none; margin-top: 12px; }
.mobile-menu.open { display: flex; }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: 100vh; padding-top: var(--nav-h);
  display: flex; align-items: center;
  position: relative; overflow: hidden;
  background: var(--black);
}
.hero-grid-bg {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(0,191,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,191,255,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at 60% 50%, black 30%, transparent 80%);
}
.hero-scan {
  position: absolute; top: -5%; left: -10%; right: -10%; height: 2px;
  background: linear-gradient(90deg, transparent, rgba(0,191,255,0.4), transparent);
  animation: scan 6s linear infinite; opacity: 0.6;
}
@keyframes scan {
  0% { top: -5%; }
  100% { top: 105%; }
}
.hero-inner {
  max-width: var(--max-w); margin: 0 auto; padding: 80px 24px;
  position: relative; z-index: 2; max-width: 680px;
  margin-left: max(24px, calc(50vw - 600px));
}
.hero-tag {
  font-family: var(--font-ui); font-size: 0.68rem; font-weight: 700;
  letter-spacing: 0.2em; color: var(--blue); text-transform: uppercase;
  border: 1px solid rgba(0,191,255,0.25); display: inline-block;
  padding: 6px 14px; border-radius: 50px; margin-bottom: 28px;
  background: rgba(0,191,255,0.04);
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3.8rem, 8vw, 7rem);
  line-height: 0.95; letter-spacing: 0.03em;
  margin-bottom: 28px;
  display: flex; flex-direction: column;
}
.hero-title .line { display: block; }
.hero-title .accent-line { color: var(--blue); }
.hero-sub {
  font-size: 1.1rem; color: var(--white-dim); max-width: 500px;
  margin-bottom: 36px; font-weight: 300; line-height: 1.7;
}
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 60px; }
.hero-cta .arrow { transition: transform 0.2s; }
.hero-cta .btn-primary:hover .arrow { transform: translateX(4px); }

.hero-stats {
  display: flex; align-items: center; gap: 32px;
}
.stat { text-align: center; }
.stat-num {
  font-family: var(--font-display); font-size: 2.8rem;
  color: var(--blue); line-height: 1;
}
.stat span { font-family: var(--font-display); font-size: 2rem; color: var(--blue); }
.stat p { font-size: 0.72rem; color: var(--white-dim); font-family: var(--font-ui); letter-spacing: 0.06em; margin-top: 4px; }
.stat-divider { width: 1px; height: 48px; background: var(--white-dimmer); }

.hero-visual {
  position: absolute; right: max(24px, calc(50vw - 580px));
  top: 50%; transform: translateY(-50%);
  z-index: 1; opacity: 0.18; pointer-events: none;
}
.trident-large svg { width: 320px; height: 400px; }
.trident-large { animation: float 8s ease-in-out infinite; }
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-18px); }
}

/* ============================================================
   MARQUEE
   ============================================================ */
.marquee-wrap {
  background: var(--black-3); border-top: 1px solid var(--black-4);
  border-bottom: 1px solid var(--black-4); overflow: hidden;
  padding: 16px 0;
}
.marquee-track {
  display: flex; gap: 40px; align-items: center;
  width: max-content;
  animation: marquee 28s linear infinite;
  font-family: var(--font-ui); font-size: 0.78rem; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--white-dim);
}
.marquee-track .dot { color: var(--blue); font-size: 0.5rem; }
@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ============================================================
   SERVICES
   ============================================================ */
.services { padding: 120px 0; background: var(--black); }
.services-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px;
}
.service-card {
  background: var(--black-2);
  border: 1px solid var(--black-4);
  padding: 44px 36px; position: relative;
  transition: border-color 0.3s, background 0.3s;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--blue), transparent);
  opacity: 0; transition: opacity 0.3s;
}
.service-card:hover { border-color: rgba(0,191,255,0.3); background: var(--black-3); }
.service-card:hover::before { opacity: 1; }

.service-num {
  font-family: var(--font-display); font-size: 4rem; color: var(--black-4);
  position: absolute; top: 20px; right: 24px; line-height: 1;
  transition: color 0.3s;
}
.service-card:hover .service-num { color: rgba(0,191,255,0.12); }
.service-icon {
  width: 48px; height: 48px; color: var(--white-dim); margin-bottom: 24px;
}
.service-icon svg { width: 100%; height: 100%; }
.service-card h3 {
  font-family: var(--font-ui); font-size: 1.3rem; font-weight: 700;
  margin-bottom: 14px; color: var(--white);
}
.service-card p {
  font-size: 0.92rem; color: var(--white-dim); line-height: 1.7; margin-bottom: 24px;
}
.service-list {
  border-top: 1px solid var(--black-4); padding-top: 20px;
  display: flex; flex-direction: column; gap: 10px; margin-bottom: 28px;
}
.service-list li {
  font-size: 0.82rem; color: var(--white-dim); padding-left: 16px;
  position: relative; font-family: var(--font-ui);
}
.service-list li::before {
  content: '—'; position: absolute; left: 0; color: var(--blue); font-size: 0.7rem;
}
.service-link {
  font-family: var(--font-ui); font-size: 0.8rem; font-weight: 700;
  color: var(--blue); letter-spacing: 0.08em; text-transform: uppercase;
  transition: letter-spacing 0.2s;
}
.service-link:hover { letter-spacing: 0.15em; }

/* ============================================================
   PROCESS
   ============================================================ */
.process {
  padding: 120px 0;
  background: var(--black-2);
  border-top: 1px solid var(--black-4);
}
.process-steps {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0;
  position: relative;
}
.process-step {
  padding: 40px 32px; border-right: 1px solid var(--black-4);
  position: relative;
}
.process-step:last-child { border-right: none; }
.step-line {
  position: absolute; top: 56px; right: -1px;
  width: 2px; height: 40px;
  background: linear-gradient(to bottom, var(--blue), transparent);
}
.step-num {
  font-family: var(--font-display); font-size: 3.5rem;
  color: var(--blue); opacity: 0.25; line-height: 1; margin-bottom: 20px;
}
.step-content h4 {
  font-family: var(--font-ui); font-size: 1.1rem; font-weight: 700;
  margin-bottom: 12px; color: var(--white);
}
.step-content p { font-size: 0.88rem; color: var(--white-dim); line-height: 1.7; }
.step-duration {
  margin-top: 20px;
  font-family: var(--font-ui); font-size: 0.7rem; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--blue); padding: 5px 10px;
  border: 1px solid rgba(0,191,255,0.2);
  border-radius: 50px; display: inline-block;
  background: rgba(0,191,255,0.05);
}

/* ============================================================
   CASE STUDIES
   ============================================================ */
.work { padding: 120px 0; background: var(--black); }
.work-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
  margin-bottom: 56px;
}
.case-card {
  background: var(--black-2); border: 1px solid var(--black-4);
  border-radius: var(--radius-lg); padding: 36px 32px;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
  opacity: 0; transform: translateY(20px);
  animation: fadeUp 0.5s ease forwards;
}
.case-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0,191,255,0.25);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}
@keyframes fadeUp {
  to { opacity: 1; transform: translateY(0); }
}
.case-tag {
  font-family: var(--font-ui); font-size: 0.65rem; font-weight: 700;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--blue); background: rgba(0,191,255,0.08);
  border: 1px solid rgba(0,191,255,0.2);
  padding: 4px 10px; border-radius: 50px; display: inline-block;
  margin-bottom: 20px;
}
.case-company {
  font-family: var(--font-ui); font-size: 1.15rem; font-weight: 700;
  margin-bottom: 8px; color: var(--white);
}
.case-desc {
  font-size: 0.88rem; color: var(--white-dim); line-height: 1.6; margin-bottom: 28px;
}
.case-results { display: flex; gap: 24px; border-top: 1px solid var(--black-4); padding-top: 24px; }
.case-result .result-num {
  font-family: var(--font-display); font-size: 1.9rem; color: var(--blue);
  line-height: 1;
}
.case-result .result-label {
  font-size: 0.72rem; color: var(--white-dim); font-family: var(--font-ui);
  letter-spacing: 0.04em; margin-top: 4px;
}
.work-cta { text-align: center; }

/* ============================================================
   BOOKING
   ============================================================ */
.book {
  padding: 0;
  background: var(--black-2);
  border-top: 1px solid var(--black-4);
}
.book-inner {
  max-width: var(--max-w); margin: 0 auto; padding: 0 24px;
  display: grid; grid-template-columns: 1fr 1fr;
  min-height: 700px;
}
.book-content {
  padding: 100px 60px 100px 0;
  border-right: 1px solid var(--black-4);
  display: flex; flex-direction: column; justify-content: center;
}
.book-content h2 {
  font-family: var(--font-display); font-size: clamp(2.4rem, 4vw, 3.4rem);
  line-height: 1.05; margin-bottom: 20px;
}
.book-content > p { color: var(--white-dim); font-size: 1rem; margin-bottom: 32px; line-height: 1.7; }
.book-bullets { display: flex; flex-direction: column; gap: 14px; }
.book-bullets li {
  display: flex; align-items: center; gap: 12px;
  font-size: 0.95rem; color: var(--white-dim);
}
.check {
  width: 22px; height: 22px; background: rgba(0,191,255,0.1);
  border: 1px solid rgba(0,191,255,0.3); border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 0.65rem; color: var(--blue); flex-shrink: 0;
}

.book-form-wrap { padding: 60px 0 60px 60px; display: flex; align-items: center; }
.book-form { width: 100%; }
.book-form h3 {
  font-family: var(--font-ui); font-size: 1.25rem; font-weight: 700;
  margin-bottom: 28px; color: var(--white);
}

/* FORMS */
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 18px; }
.form-group label {
  display: block; font-family: var(--font-ui); font-size: 0.75rem; font-weight: 600;
  letter-spacing: 0.06em; text-transform: uppercase; color: var(--white-dim);
  margin-bottom: 8px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%; background: var(--black-3);
  border: 1px solid var(--black-4); border-radius: var(--radius);
  padding: 12px 16px; color: var(--white);
  font-family: var(--font-body); font-size: 0.92rem; font-weight: 300;
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none; appearance: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(0,191,255,0.1);
}
.form-group select { cursor: pointer; }
.form-group textarea { resize: vertical; min-height: 90px; }
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--white-dimmer); }
.form-group.honeypot { position: absolute; left: -9999px; }

.form-note {
  font-size: 0.78rem; color: var(--white-dimmer); text-align: center;
  margin-top: 12px; font-style: italic;
}
.form-success {
  text-align: center; padding: 32px 24px;
  border: 1px solid rgba(0,229,160,0.3);
  border-radius: var(--radius-lg);
  background: rgba(0,229,160,0.04);
}
.success-icon {
  width: 48px; height: 48px; background: rgba(0,229,160,0.1);
  border: 1px solid rgba(0,229,160,0.4); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; color: var(--success); margin: 0 auto 16px;
}
.form-success h4 {
  font-family: var(--font-ui); font-weight: 700; font-size: 1.1rem;
  color: var(--success); margin-bottom: 8px;
}
.form-success p { font-size: 0.88rem; color: var(--white-dim); }
.form-error {
  padding: 14px 16px;
  border: 1px solid rgba(255,68,85,0.3); border-radius: var(--radius);
  background: rgba(255,68,85,0.04); margin-top: 12px;
}
.form-error p { font-size: 0.85rem; color: var(--error); }
.form-group input.error,
.form-group textarea.error { border-color: var(--error); }

/* ============================================================
   CONTACT
   ============================================================ */
.contact {
  padding: 120px 0;
  background: var(--black);
  border-top: 1px solid var(--black-4);
}
.contact-grid {
  display: grid; grid-template-columns: 1fr 1.2fr; gap: 80px; align-items: start;
}
.contact-info h2 {
  font-family: var(--font-display); font-size: clamp(2rem, 3.5vw, 3rem);
  line-height: 1.05; margin-bottom: 20px;
}
.contact-info > p { color: var(--white-dim); margin-bottom: 36px; }
.contact-details { display: flex; flex-direction: column; gap: 20px; }
.contact-item { display: flex; flex-direction: column; gap: 4px; }
.contact-label {
  font-family: var(--font-ui); font-size: 0.7rem; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--blue);
}
.contact-item a, .contact-item span {
  font-size: 0.95rem; color: var(--white-dim);
}
.contact-item a:hover { color: var(--blue); }
.contact-form { }

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--black-2); border-top: 1px solid var(--black-4);
  padding: 60px 0 32px;
}
.footer-inner {
  display: flex; justify-content: space-between; align-items: flex-start;
  gap: 48px; margin-bottom: 48px;
}
.footer-brand { max-width: 280px; }
.footer-brand p { font-size: 0.88rem; color: var(--white-dim); margin-top: 14px; }
.footer-links { display: flex; gap: 60px; }
.footer-col { display: flex; flex-direction: column; gap: 12px; }
.footer-col h5 {
  font-family: var(--font-ui); font-size: 0.7rem; font-weight: 700;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--white);
  margin-bottom: 4px;
}
.footer-col a { font-size: 0.88rem; color: var(--white-dim); transition: color 0.2s; }
.footer-col a:hover { color: var(--blue); }
.footer-bottom {
  border-top: 1px solid var(--black-4); padding-top: 24px;
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.78rem; color: var(--white-dimmer);
}
.footer-legal { display: flex; gap: 24px; }
.footer-legal a { transition: color 0.2s; }
.footer-legal a:hover { color: var(--blue); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: 1fr 1fr; }
  .process-steps { grid-template-columns: 1fr 1fr; }
  .process-step:nth-child(2) { border-right: none; }
  .work-grid { grid-template-columns: 1fr 1fr; }
  .book-inner { grid-template-columns: 1fr; }
  .book-content { padding: 80px 0 40px; border-right: none; border-bottom: 1px solid var(--black-4); }
  .book-form-wrap { padding: 40px 0 80px; }
}

@media (max-width: 768px) {
  .nav-links, .btn-nav { display: none; }
  .hamburger { display: flex; }
  .hero-visual { display: none; }
  .hero-inner { margin-left: 0; }
  .hero-stats { flex-direction: column; align-items: flex-start; gap: 16px; }
  .stat-divider { width: 48px; height: 1px; }
  .services-grid { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: 1fr; }
  .process-step { border-right: none; border-bottom: 1px solid var(--black-4); }
  .process-step:last-child { border-bottom: none; }
  .step-line { display: none; }
  .work-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .footer-inner { flex-direction: column; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
  .form-row { grid-template-columns: 1fr; }
  .hero-cta { flex-direction: column; }
  .hero-cta .btn { width: 100%; justify-content: center; }
}